.cat {
    padding-bottom: 6rem;
}

/* 导航部分 */
.nav {
    display: flex;
    justify-content: space-between;
    align-content: center;
    align-items: center;
    text-align: center;
    border-bottom: 1px solid #cccccc;
}

.nav .int {
    width: 22%;
    height: 10rem;
    line-height: 10rem;
    font-size: 2.8rem;
    background: url(../images/jt3.png) no-repeat right center;
    background-size: 2rem;
}

/* 小轮播图部分 */
.small {
    display: flex;
    justify-content: space-between;
    align-content: center;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 2rem;

}

.small .back {
    width: 30%;
    /* height: 15.6rem; */
    border-radius: 2rem;
    overflow: hidden;
    border: 1px solid #ccc;
    text-align: center;
    /* background-color: #ccc; */
}

.small .back .img img {
    width: 80%;
    vertical-align: middle;
}

.small .back .txt {
    text-align: center;
    font-size: 2.4rem;
    background-color: #ccc;
}



/* 千库 */
.much {
    margin-top: 2.6rem;
}

.back1 {
    display: flex;
    justify-content: space-around;
    padding-bottom: 2rem;
    padding-top: 2rem;
    border-bottom: 1px solid #ccc;
}

.back1 .left {
    width: 40%;
}

.back1 .left img {
    width: 100%;
}


.back1 .right {
    width: 55%;

}

.back1 .right .title {
    font-size: 2.8rem;
    font-weight: bold;
}

.back1 .right .pirc {
    font-size: 2.2rem;
    color: #6c6c6c;

}

.back1 .right .last {
    font-size: 2.2rem;
    color: #ff4653;
}

.back1 .right .last span {
    font-size: 3rem;
    color: #ff4653;
}